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⚡ Plug in. Light up. Stay safe. The pro’s choice for wiring confidence.
The Klein Tools RT210 GFCI Receptacle Tester is a compact, durable device engineered to detect the most common wiring issues in standard and GFCI outlets. Featuring LED indicators and a built-in diagnostic chart, it quickly identifies faults like open ground, reverse polarity, and confirms GFCI operation. Certified to UL and CSA standards and drop-tested to 2 meters, it’s designed for professionals demanding reliable, on-site electrical safety verification.












| ASIN | B01AKX8L0M |
| Best Sellers Rank | 343,338 in DIY & Tools ( See Top 100 in DIY & Tools ) 407 in Circuit Testers |
| Brand | KLEIN TOOLS |
| Colour | Black/Orange |
| Compatible Devices | Standard and GFCI Receptacles |
| Country Of Origin | China |
| Customer Reviews | 4.8 out of 5 stars 8,599 Reviews |
| Global Trade Identification Number | 00092644690273 |
| Included Components | RT210 |
| Item Dimensions | 13.5 x 9.7 x 3.8 centimetres |
| Item Length | 1.62 Inches |
| Item Type Name | GFCI Receptacle Tester Klein Tools RT210 |
| Item Weight | 1.9 Ounces |
| Item Width | 1.88 Inches |
| Item dimensions L x W x H | 13.5 x 9.7 x 3.8 centimetres |
| Item weight | 1.9 Ounces |
| Manufacturer | Klein Tools |
| Manufacturer Part Number | RT210 |
| Measurement Type | Voltmeter |
| Minimum Operating Voltage | 110 |
| Model Number | RT210 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Power Source | Corded Electric |
| Power source | Corded Electric |
| Product Warranty | Two years from the date of purchase. |
| Specification Met | Cat Ii 300v |
| Style | GFCI Testing |
| Style Name | GFCI Testing |
| UPC | 092644690273 |
| Unit Count | 1.0 count |
| Upper Temperature Rating | 140 Degrees Fahrenheit |
A**N
Handy to keep for checking your American boat ac
This is a handy keep in your tool bag ac socket checker , simply plug in and check the light indicator then look at ref chart on socket checker to see if there’s a fault . Only draw back is the socket checker is pretty fragile . Keep in your bag separate
C**N
Simple and reliable
This Klein outlet tester is a very handy tool to have around the house. It’s extremely simple to use—just plug it into an outlet and the indicator lights quickly show whether the wiring is correct or if there’s a problem like an open ground or reversed wiring. The built-in GFCI test button is also very useful. It allows you to quickly verify that GFCI outlets are functioning properly and trip when they should. I used it to check several outlets around the house and it worked exactly as expected. The build quality feels solid, which is typical for Klein tools, and the printed legend on the front makes it easy to interpret the light patterns. Overall this is an inexpensive but very useful tool for homeowners, DIYers, or anyone who wants to quickly verify outlet wiring and GFCI protection.
伊**伸
アースが効いているか明確に
英語表記
Y**E
Indispensable para músicos
Funciona muy bien, muy práctico para revisar si está bien conectado un enchufe de electricidad, con si respectiva fase, neutro y tierra. Altamente recomendable para músicos, ingenieros de audio que trabajen en distintos recintos.
A**Y
Original quality.
True Klein product. Works as it should. Love it for assessing electrical outlets.
Ó**A
Excelente
Muy útil
Trustpilot
4 days ago
3 weeks ago